VOA慢速英语:世界最大冰山即将撞上南乔治亚岛 岛上野生动物恐遭灭顶之灾

iceberg – n. a very large piece of ice floating in the ocean

shelf – n. a flat area of rock, sand, etc., especially underwater

disturb – v. to change something by moving it from its original position

ecosystem – n. everything that exists in a particular environment

species – n. a group of animals or plants that are similar and can produce off spring

dramatically – adv. very sudden or notable